Rose blocking knob



Aug. 14, 1962 F. .1. RUSSELL ET AL 3,048,996

ROSE BLOCKING KNOB Filed Sept. 19, 1960 2 Sheets-Sheet 1 BY 3M Mam aa/n/ATTOQH EVS Aug- 14, 1962 F. J. RUSSELL ETAL 3,048,996

ROSE BLocKING KNOB 2 Sheets-Sheet 2 Filed sept. 19, 1960 IN V EN TORSFaso J RUSSE/L GEO/Q65 B. ,5o/ o V/EFF ATTORNEYS Patented Aug. 14, 19623,048,996 ROSE BLOCKHNG KNOB Fred J. Russell, 3800 Don Felipe Drive, LosAngeles, Calif., and George B. Solovietf, South Gate, Calif.; saidSolovietf assigner to said Russell Filed Sept. 19, 1960, Ser. No. 56,7803 Claims. (Cl. 71E- 216) The invention relates to door locks of theconventional type used on both `outside doors and inside doors, thestructural subject matter being more directly related to a means fortemporarily locking one of the knobs to a stationary portion `of thedevice, thereby to prevent opening of the door.

In the type of door hardware which has been developed during recentyears featuring the location of key-actuated mechanisms in the doorknob, the customary expediment has been to provide a temporaryinterconnection or locking arrangement between some stationary elementof the locking device which is fastened to the door and the spindle,thereby to bar manipulation of the latch bolt through use of the handlewhen the door is locked. Due to the necessarily compact character oflocks of this nature, means heretofore devised have been unsatisfactoryor objectionable due to a variety of reasons such as complexity, highcost, lack of durability over long periods of use, and also in someinstances due to the fact that mechanism used to bar withdrawal of thelatch bolt is housed in the inner door knob and uses the thus blockedspindle as the medium by which the outside knob is made nonrotatable.

It is therefore among the objects of the invention to provide a lockmechanism of such construction that mechanical locking parts manipulatedby the key-actuated mechanism lie all on the same side of the lockdevice as the key-actuated mechanism and attach directly to a stationaryportion of the locking device on the same side of the door.

Another object of the invention is to provide a lock with a mechanismwhich blocks the knob against rotation by connecting it temporarilydirectly to the adjacent rose by a simple expedient housed within therose and the knob shank, operative in such fashion that it can bereadily released when desired.

Another object of the invention is to provide an effective, positivemeans for blocking the knob against rotation and moreover one whichlends itself readily when desired to llocking or unlocking the knob fromeither side of the door.

Still further among the `objects of the invention is to provide a lock,the structure of which is simple and inexpensive but at the same timewhich is rugged and dependable.

With these and other objects in view, the invention consists in theconstruction, arrangement and combination of the various parts of thedevice, whereby the objects contemplated are attained, as hereinafterset forth, pointed out in the appended claims and illustrated in theaccompanying drawings.

In the drawings:

FIGURE l is a side elevational view partially broken away showing theparts of the lock in unlocked condition of adjustment.

FIGURE 2 is a view similar to FIGURE l showing the parts in lockedcondition of adjustment.

FIGURE 3 is a cross-sectional view on the line 3-3 of FIGURE l.

FIGURE 4 is a cross-sectional View on the line 4-4 of FIGURE l.

FIGURE 5 is a cross-sectional View on the line 5 5 of FIGURE l.

FIGURE 6 is a cross-sectional view on the line 6 6 of FIGURE 2.

FIGURE 7 is a fragmentary side elevational view with parts broken awayto a lesser extent than FIGURES l and 2 and showing the parts inunlocked condition of adjustment, and in a position 9() degrees removedfrom the position of FIGURES 1 and 2.

lFIGURE 8 is a view similar to FIGURE 7 showing the parts in lockedcondition of adjustment.

In an embodiment of the invention chos-en for the purpose ofillustration the parts of the device in which the invention isincorporated may be identified generally as an operating assemblyindicated by the reference character 10 rotatably mounted upon a rose orescutcheon assembly indicated generally by the reference character 11. Aspindle 12 extends from the interior of the operating assembly towardthe location where the usual latch bolt mechanism (not shown) isencountered.

The rose or escutcheon assembly 11 consists of various partsconstituting what may be described as a stationary portion of the devicecomprising in the main a fastening plate 13 upon which is mounted a pairof index posts 14 and 15 which serve as a means by which the operatingassembly and its appropriate escutcheon assembly on one side `of thedoor is attached to its counterpart (not shown) on the other side of thedoor and in stationary position on the door itself followingconventional practice. Also forming part of the rose or escutcheonassembly is a bearing sleeve 22 which has a flange 16 fastenednon-rotatably in the plate 13, thereby becoming a part of the stationaryportion of the device. A decorative rosette 17 of substantiallyconventional construction surrounds the bearing sleeve and is attachedby appropriate conventional means to the place 13, thereby substantiallycompleting the rose or escutcheon assembly.

Of special consequence in the structure-` and operation of the inventionis the provision of an annular recess 18 located on an inner wall 19 ofthe bearing sleeve intermediate outside and inside ends. A lock-slot 26in the bearing sleeve 22 extends from the annular recess 18 inwardlytoward the inner end of the sleeve and a lock-slot 21 is located on theother side.

The operating assembly 10 includes a knob Z4 having a shank 25 thereon,the shank 25 having a reduced portion 26 rotatably mounted within thebearing sleeve 22. The reduced portion extends through the escutcheonassembly to which it is fastened by an appropriate snap ring 23 so thatonce in assembled position, the operating assembly and the escutcheonassembly are secured together with the operating assembly rotatablymounted in the escutcheon assembly. The snap ring 23 overlies a lockring 123 by means of which the parts are contained within the roseassembly.

Within the knob is a key-actuated mechanism indicated generally by thereference character 27 which includes an appropriate tail-piece 28positioned to engage alternatively shoulders 29 and 30 `of a washer toprovide for a degree of lost motion between rotation of the knob `andthe key-actuated mechanism las is customary in devices of this kind. Atail-piece extension 32. is non-rotatably engaged with the key-actuatedmechanism and includes a projection 33 engageable alternatively againstshoulders .34 and 35 of a collar 36. In order to hold the key-actuatedmechanism in place, ya threaded projection 37 of a plug 38 is engagedwith an internally threaded cap 39, the cap being provided with adiametrically extending slit 40 within which a tongue 41 of thetail-piece extension 32 is contained, thus holding the threaded cap 39`and plug 38 in non-rotational relationship `as long as the tongue 41remains in place.

.Near the end of the spindle 12, which is located within the collar 36,is a lock bar 45. By reason of the fact that the spindle 12 is square inthe embodiment chosen, a squared aperture 46 in the lock bar containsthe spindle non-rotatably with respect to the lock bar. The lock barincludes two ends 47 `and 48 which extend diametrically outwardly fromthe center. The collar 36 is provided with a pair of identical cam slots50 and 5l, one of which is iclearly shown in FIGURE 8. Each cam slot hasa sloping cam track 52 which follows the wall of the collar 36 in anarcuate direction `and is provided with a shallow recess 53 at thebottom. In the reduced portion Z6 of the shank 25 there is provided apair of axially extending passages 54 and 55. Accordingly, the end 47 ofthe lock bar 45 extends radially outwardly first through the cam slot50, then through the axially extending passage 54 and ultimately intoeither the annular recess 18, as shown in FIGURE l, or into thelock-slot 2t), as shown in FIG- URE 2, depending upon the adjustment ofthe device. Similarly the end 48 of the lock bar extends first throughthe cam slot 5l, thence through the axially extending passage 55 intoeither the recess I8 or the lock-slot 21, depending upon the adjustmentof the device. If desired, the lock bar 45 may be spring urged in adirection from left to right, as viewed in FIGURE l, by action of acoiled spring 56 which is conned between the lock bar and a springkeeper 57 held in position on the spindle by a bead 58.

Following customary construction in devices of this kind there isprovided a torsion spring assembly, identifled generally by thereference character 60, including a torsion spring 61 which acts throughappropriate mechanism to return the spindle and operating assembly toinitial po-sition after each successive rotation.

In explaining the operation of the device, it may be assumed that theparts are initially in the positions illustnated in FIGURES 1, 5 and 7,for example. As there shown, the collar 36 has been rotated so that thedock bar 45 has been moved toward the left lby action of the cam tracks52 compressing the spring 56. The ends of Ithe lock bar will in thisposition of adjustment ride in the recess 418. Hence, even though thelock bar is nonrotatably secured to the spindle -and is alsonon-rotatably connected to the shank 25, the shank and the knobaccordingly will rotate freely because of the freedom of rotation of theends yof the lock bar in the `annular recess.

When the knob is to be tlocked, the key-actuated mechanism is rotatedappropriately which, through the tail-piece extension 32, rotates thecollar 36 from the position of FIGURES l, 5 and 7 to the position ofFIGURES 2, 6 and 8. As the cam slots 50 and 51 move relative to therespective ends 47 and 48 of the lock bar, the spring 56 expands `andthe ends slide down the cam tracks 52 until they nest in the recesses 53at the bottoms. During this motion the ends 54 and 55 move out of theannular recess 18 and pass respectively into the lock-slots 20 and 2l,as clearly shown in FIGURES 2 and 6'. When this position has .beenachieved, the lock bar 45 is non-rotatably connected to the stationaryportion of the device, as exemplified by the bearing sleeve 22 and4accordingly the escutcheon assembly. This being stationary and byreason of the fact that the lock b-ar positioned a-s described in theaxially extending passages 54 and 55 in the shank, is nonrotatablerelative to the shank, therefore, the shank and accordingly theoperating assembly becomes 'anchored non-rotatably to the escutcheonassembly. Accordingly, the knob 24 cannot be rotated and =as aconsequence the latch bolt cannot be withdrawn by manipulation of theknob.

When the device is to be unlocked, it must be done so by use of a keyrotating the parts in an opposite direction. This results in a rotationof the collar 36 in the opposite direction forcing the ends 47 and 48upwardly along the cam tracks 52 from the position of FIGURE 8, forexample, to the position `of FIGURE 7. During this movement the ends 47and 48 pass from the respective lock-slots and 21 into the recess I8,once `again freeing the knob for rotation.

`By Virtue of the structure hereinabove described, it is clear thatcompactly mounted within the rose or escutcheon assembly on the sameside of the door as the operating assembly is a simple, rugged means bywhich the knob vcan be anchored -against rotation when the mechanism isappropriately manipulated by a key-actuated mechanism in the same knobas the knob which is to be barred from rotation. Because of theproximity, the parts may be maintained small, simple and compact.Further still, the shift between locked and unlocked positions can beachieved by virtually a minimum degree of movement of the parts, bothrotationally and axially, thereby resulting in the positive andeffective blocking oper-ation which the invention has been constructedto achieve.

Also, it should be recognized that the spring urging of the lock bar 45by the spring 56 readily could be reversed so that the lock-bar 45 couldbe cammed into Ilocking position and spring urged into unlockedposi-tion. Also the cam tracks could ybe so designed as to move the lockbar 45 in either direction without aid or existence of the spring.

It should be recognized also that the collar 36 could as readily Iberotated by the tail-piece extension 32 which could be joined to alocking-unlocking mechanism in the inside knob (not shown) by atail-piece operator which would extend from the inside knob to thetail-piece extension through a hollow spindle which could replace thesolid spindle 12. This combination `could be used when lock-ing andunlocking from the inner side of the door.

While 4the invention has herein been shown and described in what isconceived to ybe the most practical and preferred embodiment, it isrecognized that departures may be made therefrom within the scope of theinvention, which is not to be limited to the details disclosed hereinbut is to be accorded the full scope of the claims so as to embrace anyand all equivalent devices.

Having described `the invention, What is claimed as new in support ofLetters Patent is:

1. A door lock device comprising a mounting rose assembly adapted to besecured upon a door in a relatively stationary position and having abearing aperture therethrough, an operating assembly including amounting portion thereof rotatably mounted in said aperture, said 'roseassembly having an annular recess ltherein and a lockslot extendingaxially from said annular recess, a spindle, and a lock-bar having anon-rotatable and axially movble mounting on said spindle, saidoperating assembly mounting portion having an axially extending passageland said lock-bar being located in said passage, said spindle :havingan non-rotatable connection with said operating assembly, means formoving said lock-bar into one position whereby a portion of saidlock-bar extends into said annular recess thereby to permit rotation ofsaid operating assembly relative to said rose and means for moving saidlock-bar into another position whereby a portion of said lock-barextends into said lock-slot thereby to connect said operating assemblyin non-rotatable engagement with said rose.

2. A door lock device comprising la mounting rose assembly adapted to besecured upon a door in a relatively stationary position and having abearing aperture therethrough, an operating assembly including amounting portion thereof rotatably mounted in said aperture, said roseassembly having an annular recess therein and a llock-slot extendingaxially from said annular recess, a spindle, and a lock-bar having .anon-rotatable and axially movable mounting on said spindle, saidlock-bar comprising .a non-rotatable connection between said spindleyand "said operating assembly, means for moving said lock-bar into oneposition whereby a portion of said lockbar extends into said annularrecess thereby to permit rotation of said operating assembly relative tosaid rose and means for moving said lock-bar into another positionwhereby a portion of said lock-bar extends into said lockslot thereby toconnect said operating assembly in nonrotatable engagement with saidrose, said means for moving said lock-bar including a cam.

3. A door lock device comprising a mounting rose assembly adapted to besecured upon a door in a rela- Itively stationary position and having abearing aperture therethrough, an operating assembly including amounting portion thereof rotatably mounted in said aperture, said roseassembly having an annular recess therein vand a lock-slot extendingaxially from said annular recess, a spindle, and a lock bar having anon-rotatable and axially movable mounting on said spindle, saidoperating assembly mounting portion having an axially extending passageand said lock bar being located in said passage and forming thereby anon-rotatable connection between said spindle and said operatingassembly, means for moving said lock bar into one position whereby aportion of said lock bar extends into said annular recess thereby topermit rotation of said operating assembly relative to said rose andmeans for moving said lock bar into another position whereby a portionof said lock bar extends into said lock-slot thereby to connect saidoperating assembly in non-rotatable engagement with said rose, saidmeans for moving said lock bar including a earn which moves said lockbar in one direction and enables said lock bar to be moved in anotherdirection.

North July 4, 1933 McConnell et al Dec. 21, 1954

